<template>
  <div>
    <!-- 面包屑  -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--  卡片视图  -->
    <el-card class="box-card">
      <el-row>
        <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
          <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
        </el-input>
        <el-button type="primary" @click="goAddpage">添加商品</el-button>
      </el-row>
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index" label="序号" width="50px"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="120px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="90px"></el-table-column>
        <el-table-column label="创建时间" width="180px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini">编辑</el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteGoods(scope.row.goods_id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[2, 5, 10, 20]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
  export default {
    name: 'List',
    data() {
      return {
        // 获取商品列表参数对象
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 5
        },
        // 商品列表
        goodsList: [],
        // 商品总数
        total: 0
      }
    },
    created () {
      this.getGoodsList()
    },
    methods: {
      // 获取商品列表
      async getGoodsList() {
        const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
        if (res.meta.status !== 200) return this.$message.error('获取商品列表失败！')
        this.goodsList = res.data.goods
        this.total = res.data.total
      },
      // 分页大小改变事件
      handleSizeChange(size) {
        this.queryInfo.pagesize = size
        this.getGoodsList()
      },
      // 当前页码改变事件
      handleCurrentChange(num) {
        this.queryInfo.pagenum = num
        this.getGoodsList()
      },
      // 删除商品
      async deleteGoods(goodsId) {
        const confirmResult = this.$confirm('此操作将删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (confirmResult !== 'confirm') return
        const { data: res } = await this.$http.delete(`goods/${goodsId}`)
        if (res.meta.status !== 200) return this.$message.error('删除商品失败！')
        this.$message.success('删除商品成功！')
        this.getGoodsList()
      },
      // 跳转到添加商品页面
      goAddpage() {
        this.$router.push('/goods/add')
      }
    }
  }
</script>

<style lang="less" scoped>
  .el-input {
    width: 30%;
    margin-right: 10px;
  }
</style>
